Apple Insider has been putting two and two together, based on web content and WWDC 2009 session info and coming up with:

Apple will leverage the popularity of the iPhone to deliver business users new Mobile Access services in Snow Leopard Server to securely deliver corporate email, contact, calendar, and intranet web services to iPhone and iPod touch users far more cost effectively than Microsoft Windows Server.

If you don't mind Mac-centric geekery, check out the full article. Bottom line, however, is that anything that makes Apple invest more heavily in secure business-focused iPhone features, the better for everyone on all platforms.

Me neither. Except for all-mac shops, where this is a natural fit, the target market are those Exchange shops who are willing to eat some short term training and transition costs for some long-term savings, but who are not willing to go one step further and save more with a Linux or non-Mac BSD solution. Granted, for some tasks OSX is easier than Linux, but for sysadmin tasks, the gap is not very wide. There is a place for Apple to wiggle in there, but not a large one..
I hope Apple surprises me,, because a successful OSX entry can only put pressure on MS CAL pricing and on Linux distros to step up their interface efforts, but it is going to be a tough nut for them to crack.

So let me get this right they think they can take on ms and catch up 15+ years of experience in server Market. They haven't even got the workstation Market. Save for totally graphic oriantated businesses I cant see anyone opting for mac and the $1000s extra it will cost
Maybe in us the us there might be a bit more Market but not in the UK